Two adult siblings and their mother were shot and wounded early Thursday during an attempted home-invasion robbery in Vallejo, police said.

Investigators believe the assailants randomly chose the home near Highway 37 that they tried to rob at 3:40 a.m., said police Lt. Kenny Park.

A brother and sister, both in their 20s, and their mother were asleep in the house on the 1500 block of McDougal Street when at least two men in hooded sweatshirts forced their way through the front door, Park said.

The sister awoke and came across the assailants, retreated and was chased by the men, one of whom shot her in the hand, police said.

When the brother and mother went to see what was happening, the intruders shot the brother in the face and shot the mother in the lower part of her body, Park said.